You immediately ask someone to phone the hospital at night (H@N) team. Ask the H@N team to request the junior doctor or registrar to come immediately. The doctor needs to admit and make a medical assessment of her condition.

is looking very pale and appears not to be responding to you as she was previously. Whilst performing a set of observations, you identify she is tachycardic and although the BP cuff inflates/deflates, the reading comes back as unrecordable.

You manually re-check 's blood pressure then continue with the rest of your observations asking a colleague to ring for more urgent help, including the registrar to come and assess .